If a population has a mean of 45 and standard deviation of 40, what is the variance of the distribution of means for sample size n = 25?
a. 320
b. 1.6
c. 8
d. 64
Ans: D
You might also like to view...
The primary role of the Golgi tendon organs is to
A. change joint angles B. provide precise information about movement C. detect tension in the muscle's tendon D. register changes in head motion
Erikson's theory involves developmental crises that involve two opposite outcomes, but most people end up somewhere in the middle
Indicate whether this statement is true or false.
Which of the following is true regarding reflective writing?
a. It can only be completed over a long stretch of time b. It should be reserved only for problem solving c. It can take up as much or little time as needed d. It can only yield information about emotions
Several studies suggest that playing action video games may
A) interfere with language development. B) delay the development of memory. C) decrease aggressive behavior. D) improve both visual-spatial and motor skills.